DFRobot
Bluno - An Arduino Bluetooth 4.0 (BLE) Board
The Bluno integrates a TI CC2540 Bluetooth 4.0 (BLE) chip with an Arduino Uno-compatible development board, enabling wireless communication for your Arduino ...
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The Bluno integrates a TI CC2540 Bluetooth 4.0 (BLE) chip with an Arduino Uno-compatible development board, enabling wireless communication for your Arduino projects. It supports wireless programming via BLE, Bluetooth HID, AT command configuration, and transparent serial communication.
Fully compatible with all Arduino Uno pins, any existing Uno project can go wireless simply by switching to Bluno. DFRobot provides open-source apps for both Android and iOS to communicate with Bluno devices.
Key Features
- Bluetooth 4.0 (BLE) – On-board TI CC2540 chip for low-energy wireless communication
- Wireless Programming – Upload sketches over BLE without a USB cable
- Bluetooth HID – Connect as a Human Interface Device to PCs and other devices
- AT Command Support – Configure BLE settings via AT commands
- Transparent Serial – Seamless serial communication through Bluetooth
- Arduino Uno Compatible – Drop-in replacement with full Uno pin mapping
- Master/Slave Modes – Flexible Bluetooth role configuration
- Upgradeable Firmware – Easily update the BLE firmware
Specifications
- Microcontroller: ATmega328
- BLE Chip: TI CC2540
- Bootloader: Arduino Uno
- Power: USB or external 7–12V DC
- Dimensions: 60 × 53 mm
- Weight: 30g
Ideal For
- BLE-enabled wearable and smart device prototyping
- Wireless Arduino projects and IoT applications
- Bluetooth HID devices (keyboards, controllers)
- Adding wireless connectivity to existing Arduino Uno projects
Package Contents
- 1× Bluno
Resources
Jargon buster
Plain-language definitions for the technical terms used above.
- BLE
- BLE stands for Bluetooth Low Energy, a Bluetooth mode designed for low power use and broad compatibility with modern phones and computers. It connects well to battery-powered and mobile devices, including Apple hardware, though it behaves differently from Bluetooth Classic and its serial-style profiles.
- Bootloader
- Small starter software on a microcontroller that lets new code be uploaded before the main program runs. Knowing how to enter bootloader mode matters when you need to program the board or recover it after a faulty sketch.
- DC
- DC means direct current, where electricity flows in one constant direction, as supplied by batteries, USB ports and many plug-pack power supplies. When a product specifies DC, it runs from a DC supply rather than mains AC, so you need to provide the correct voltage and polarity.
- HID
- Human Interface Device is a USB device class used for keyboards, mice, gamepads and similar controls. If a board supports HID over USB, it can act like an input device to a computer without needing a custom driver.
- IoT
- Short for Internet of Things, meaning physical devices that connect to networks or the internet to send data or be controlled remotely. It matters if you want projects such as connected sensors, remote controls or classroom data-logging activities.
- microcontroller
- A microcontroller is a small computer on a single chip that runs a stored program and controls connected inputs and outputs such as buttons, sensors, displays and communication interfaces. In a device built around one, it is the part that executes the code and coordinates the device's behaviour.
- TI CC2540
- The TI CC2540 is a Texas Instruments system-on-chip that combines an 8051 microcontroller core with a Bluetooth Low Energy (BLE) radio, used to add short-range wireless communication to embedded projects. It lets a device connect to a phone or another BLE device to exchange data or be configured wirelessly.
Find this product in
Connectivity
BLE Link Schematic V1.1
Schematic · 48.6 KB · Click any page to view full size
Supplier page — dfrobot.com
Supplier Description · 744.3 KB · Click any page to view full size
DFR0267 bluno schematics V1.0
Schematic · 59.5 KB · Click any page to view full size
Related Tutorials
Free guides on learn.littlebird.com.au
